Screw-Shaped Core for Continuous Mineral Wool Pipe Manufacturing
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Solution Overview
Problem
Current pipe section processing systems are cyclic, leading to density fluctuations and high raw material consumption, with complex and bulky structures that lack efficient density control and require extensive re-structuring for reduced production time.
Innovation Solution
A screw-shaped core and adjustable roller assembly are used to advance and remove the pipe section, allowing for rotational motions to control insulation thickness and density, eliminating the need for an external drawing device and enabling continuous, simpler manufacturing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a drawing device is used to advance the pipe section along the core, then the pipe section can be continuously manufactured, but the device becomes structurally complicated and bulky
Solution Approach 1:
The patent removes the external drawing device from the system and replaces it with an integrated screw-shaped core that inherently provides the advancement function through its rotational motion, thereby eliminating the need for a separate bulky drawing mechanism while maintaining continuous production capability
Solution Approach 2:
The screw-shaped core serves multiple functions simultaneously: it forms the pipe section structure, advances the material along its length through rotational motion, and eliminates the need for separate drawing and positioning devices, thereby reducing overall system complexity while maintaining productivity
2Ease of manufacture
If hot gas is used to cure the insulation piece, then curing can be achieved, but the device becomes unnecessarily complicated
Solution Approach 1:
The patent replaces the complex hot gas curing system with a simpler microwave irradiation system that directly penetrates and heats the insulation material, eliminating the need for elaborate hot gas delivery infrastructure while achieving effective curing
Solution Approach 2:
The patent changes the curing method from thermal conduction via hot gas to electromagnetic radiation via microwaves, fundamentally altering the physical parameter used for curing and thereby simplifying the required equipment infrastructure
3Productivity
If a cyclic production process is used, then pipe sections can be manufactured, but density fluctuations occur in the products
Solution Approach 1:
The patent implements a continuous linear production process where the screw-shaped core continuously advances the pipe section through rotational motion, eliminating the cyclic start-stop nature of traditional processes and thereby ensuring uniform density throughout the product
Solution Approach 2:
The patent uses the dynamic rotational motion of the screw-shaped core to continuously feed and advance the insulation material, creating a steady-state continuous production process that eliminates density variations associated with cyclic operation
4Loss of time
If extensive re-structuring is performed, then time per piece can be reduced, but the device becomes more complex
Solution Approach 1:
The screw-shaped core is pre-configured with a threaded geometry that inherently provides the advancement mechanism, eliminating the need for additional re-structuring or complex drawing devices, thereby reducing production time without increasing device complexity
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides a structurally simpler, more reliable, and efficient method for producing insulating pipe sections with uniform density and reduced raw material consumption, using microwave irradiation for curing.
Implementation Method 1
the advancement of a formed portion of the pipe section along the core and finally off the core taking place in response to rotational motions of both the core's screw-shaped portion and the roller assembly
Implementation Method 2
using microwave irradiation as a curing method
Data Source
Figure 1~2
AI summary
An apparatus for the continuous manufacture of a mineral wool pipe section for insulating purposes, said apparatus comprising a core and an outer roller assembly surrounding it at least partially, said roller assembly including at least two rollers, whereby a wool mat of designated length between the core and the roller assembly is windable around the core for forming a pipe section preform, one end of the core being clear for removing a formed pipe section from the core, as well as curing elements for curing the pipe section preform prior to a removal from the core off the core's clear end. At least a portion of the core is screw-shaped, the advancement of a formed portion of the pipe section along the core and finally off the core taking place in response to rotational motions of both the core's screw- shaped portion and the roller assembly.